While on his way home from the store, Sam finds a stray dog on the side of the road. Instead of taking her to the pound, the Winchester decides to pick her up, buy a leash and collar, and take care of her in the bunker. That also means hiding her from the rest of the bunker's inhabitants, who would tell Sam to let her go. When Dean discovers the leash and collar lying by the front door, Sam must do his damnedest to try and keep his mouth shut on the matter- by any means necessary.